Ryan Serhant started his career hand modeling for $150 an hour—it paid for his real estate firm, and now he sells 9-figure penthouses to billionaires
Ryan Serhant is everywhere—and that omnipresence is no accident. You might recognize the 41-year-old from his nine seasons on Million Dollar Listing New York, his own Netflix series Owning Manhattan, or a for-sale sign bearing his name as his real…